org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/internal/tmf/ui/project/handlers/OpenAnalysisOutputHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Geneviève Bastien - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.internal.tmf.ui.project.handlers;
  14
  15 import org.eclipse.core.commands.AbstractHandler;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.jface.viewers.ISelection;
  19 import org.eclipse.jface.viewers.ISelectionProvider;
  20 import org.eclipse.jface.viewers.TreeSelection;
  21 import org.eclipse.linuxtools.tmf.ui.project.model.TmfAnalysisOutputElement;
  22 import org.eclipse.ui.IWorkbenchPage;
  23 import org.eclipse.ui.IWorkbenchPart;
  24 import org.eclipse.ui.IWorkbenchWindow;
  25 import org.eclipse.ui.PlatformUI;
  26
  27 /**
  28  * Handler to programatically open a view
  29  *
  30  * @author Geneviève Bastien
  31  */
  32 public class OpenAnalysisOutputHandler extends AbstractHandler {
  33
  34     private TmfAnalysisOutputElement fOutputElement;
  35
  36     @Override
  37     public boolean isEnabled() {
  38         /* Check if we are closing down */
  39         final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  40         if (window == null) {
  41             return false;
  42         }
  43
  44         /* Get the selection */
  45         final IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
  46         final IWorkbenchPart part = page.getActivePart();
  47         if (part == null) {
  48             return false;
  49         }
  50         final ISelectionProvider selectionProvider = part.getSite().getSelectionProvider();
  51         if (selectionProvider == null) {
  52             return false;
  53         }
  54         final ISelection selection = selectionProvider.getSelection();
  55
  56         /* Make sure there is only one selection and that it is an analysis output */
  57         fOutputElement = null;
  58         if (selection instanceof TreeSelection) {
  59             final TreeSelection sel = (TreeSelection) selection;
  60             // There should be only one item selected as per the plugin.xml
  61             final Object element = sel.getFirstElement();
  62             if (element instanceof TmfAnalysisOutputElement) {
  63                 fOutputElement = (TmfAnalysisOutputElement) element;
  64             }
  65         }
  66
  67         return (fOutputElement != null);
  68     }
  69
  70     @Override
  71     public Object execute(ExecutionEvent event) throws ExecutionException {
  72
  73         /* Check if we are closing down */
  74         final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  75         if (window == null) {
  76             return null;
  77         }
  78
  79         /* Check that the view is valid */
  80         if (fOutputElement == null) {
  81             return null;
  82         }
  83
  84         fOutputElement.outputAnalysis();
  85
  86         return null;
  87     }
  88
  89 }